This paper examines the multifaceted environmental consequences of deforestation, focusing on three primary harms: loss of biodiversity, soil depletion, and increased greenhouse gas emissions. Drawing on scientific research and case studies, the paper argues that current deforestation rates—approximately 30,000 square miles annually—pose an irreversible threat to tropical rainforests and their species. The analysis considers both the drivers of deforestation (timber extraction, agricultural expansion) and potential mitigation strategies, including protected areas, sustainable business practices, and programs like REDD (Reducing Emissions From Deforestation and Degradation). The paper concludes that immediate conservation efforts are essential to prevent further environmental collapse.
The elimination of tropical forests globally has been a persistent issue for many years. The concept of deforestation implicates the cutting down, burning, and removal of forests. Alterations from forestlands to farms, ranches, urban, or suburban use are all examples of deforestation. Deforestation occurs because trees are used or sold as timber, while derivative charcoal is used or sold for fuel. While vacant land is used for cultivating livestock, plantations, and building estates, forests still cover about 30 percent of the world's land area. Approximately 30,000 square miles are lost each year. At the current rate, scientists say the world's rainforests could entirely vanish within a hundred years. Forests can be valuable and useful commodities. Deforestation causes irreparable harm to the environment because it affects biodiversity, depletes soil, and contributes to growth in greenhouse gas emissions.
The loss of forests is undoubtedly visible. Unfortunately, a decline in biodiversity has a less perceptible effect. Deforestation can primarily lead to biodiversity loss when trees are no longer present for animal species habitats and animals are unable to relocate, becoming extinct. According to NASA Earth Observatory, "Half of all 5 to 80 million species live in the rainforests. Rainforests only make up seven percent of Earth's total land area, making these habitats dense with life. Scientists have only named 1.5 million species in detail but yet about 137 species become extinct daily" (Tropical Deforestation n.p).
Many of these indigenous species are exclusive to the forest and can only be found in small regions. Their specialization makes them defenseless against extinction. In addition to the species lost and the area that has been wholly deforested, the extinction of one species will affect many more later. With such astonishing information, it is a question as to why such a significant and amazing thing is being destroyed. Unfortunately, money is the essential motivator, especially in poor areas.
Arturo Sanchez-Azofeifa, department head of Earth and Atmospheric Science, concluded a solution to help mitigate the damage of biodiversity. He claims that "national parks are a good starting point for conversation but they were not sufficient for species that need large habitat spaces in order to remain genetically stable" (Sanchez-Azofeifa et al., 2002). Sanchez also noted that the government could look into supplementary solutions to preserve biodiversity such as taxing businesses that deforest and providing alternatives. Corporations could maintain biodiversity by finding sustainable ways for their use of capital. The solution to biodiversity would also benefit from individuals who choose to live in areas that have already been developed, which then reduces the need for additional clearance.
Aside from the depreciation of biodiversity, the forest's nutrient soil is depleted from deforestation. Humans have been cutting down trees for centuries. Settlers tend to think that cutting down the largest tree will yield the most fertile soil. However, land natives know that the regions where the trees have thinner trunks are often comprised of nutrient-rich soil. According to Britannica, "Typically in an area like the Amazon basin, which is home to the world's largest single rainforest, only around 4 percent of land is suitable for agriculture of any type. Seventy-five percent of the land is so poor that cultivators are unlikely to get more than a single crop from the soil before it is completely exhausted" (Discover it n.p).
When there is deforestation, roughly no nutrients reach the forest soil and it is consequently poor. The root systems of the forest trees are confined to the topmost layers of soil with the most nutrients. The deeper layer of the soil does not contain appreciable quantities of nutrients. Removal of the forest trees permits the soil to dry and the existing organic matter to decompose. The degraded soil is also liable to erosion by wind and during land floods is washed away. As a result of poor soil conditions, constant farming after forest clearance is strenuous and, because of nutrient depletion, there is modest hope for reforestation.
An example of this unfortunate cycle is Africa. Africa currently is experiencing deforestation five times faster than other countries. In the 1900s, Africa was home to more than 193,000 square miles of rainforest; currently only 22.8 percent remains (Tropical Deforestation Rates in Africa n.p). Therefore, deforestation has now resulted in the desert conditions Africa is known for.
Greenhouse gases are defined as "gases that allow sunlight to enter the atmosphere freely and contribute to the greenhouse effect, which many believe is the cause of global warming" (Greenhouse Gas Emissions n.p). Trees absorb carbon dioxide and produce oxygen for living beings to breathe through the process known as photosynthesis. Nick Hopwood and Jordan Cohen, professors at a major university, claim "the largest anthropogenic contributor to the greenhouse effect is carbon dioxide gas emissions" (Hopwood & Cohen n.p). Trees are natural "carbon sinks" that clean up the carbon footprint produced by humans.
Conservation International claims "About 16 percent of annual global greenhouse gas (GHG) emissions result from deforestation and logging" (Baer n.p). The 16 percent is calculated by the CO2 emissions from the clearing and burning of forests. The fuel to run chainsaws and heavy machinery as well as the trucks to transport the timber and coal contribute to this statistic. A program known as Reducing Emissions From Deforestation and Degradation (REDD) is an organization with a set of steps using market and financial incentives to reduce the emission of greenhouse gases from deforestation. REDD consists of diverse scientists and environmentalists that distribute value to pristine ecosystems like rainforests and swamps.
Published in Science Magazine, scientists exclaim that "[REDD has] the potential to shift the balance of underlying economic market forces that currently favor deforestation, by raising billions of dollars for the ecosystem services provided by rainforest regions" (REDD Plan n.p). Deforestation is a recognized contributor to greenhouse gas emissions and subsequently global climate change.
There is no uncertainty that deforestation has caused irreversible harm to the environment. As extreme deforestation continues, the biodiversity of hundreds of plants and animals are affected. Losing their homes each day with little chance of recovering, additionally with the recently depicted soil that does not stay fertile for long, farmers will only exploit the land for a couple of years as it becomes infertile. With the absence of trees, carbon dioxide is no longer absorbed and oxygen is no longer produced, putting the environment and people's health at risk. There is diminished chance that our forests, especially our tropical rainforests, will ever recover. The only option is to make conservation attempts and restrict deforestation while there is still a chance.
Baer, Elizabeth. "16% of Greenhouse Gas Emissions Result from Deforestation and Logging." Conservation International Blog. Web. 13 Apr. 2012.
"Deforestation." National Geographic. Web. 13 Apr. 2012.
"Discover It." How Does Deforestation Result in Soil Infertility? Web. 13 Apr. 2012.
Hopwood, Nick, and Jordan Cohen. "Greenhouse Gases and Society." Web. 13 Apr. 2012.
"(REDD) Plan." Conservation and Environmental Science News. Web. 13 Apr. 2012.
"Tropical Deforestation: Feature Articles." NASA Earth Observatory: Home. Web. 13 Apr. 2012.
"Tropical Deforestation Rates in Africa." Environmental News and Information. Web. 13 Apr. 2012.
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